<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
    <script>
        console.log(encodeURI('123中文'));
        console.log(encodeURIComponent('123中文'))
        console.log(decodeURI(encodeURI('123中文')))
        console.log(decodeURIComponent(encodeURIComponent('123中文')))

        console.log(parseInt('11'))
        console.log(parseInt('1122aaaa'))
        alert(1);
        // eval('alert(1)');
    </script>
</body>
</html>